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SMA connectors has many advantages, such as small size, wide frequency range, excellent signal properties and high reliability. SMA connectors are mostly used in RF and Microwave Industries .Key performanceMaterialCharacteristic impedance: 50Ω Ferquency range: With flexible cable: 0 12.4GHz With semi-rigid/comfortable cable:0 18GHz Contact resistance: Center conductor≤4.0mΩ Out conductor≤2.0mΩ Insulation resistance ≥500MΩ Insulator voltage withstanding: 1000V VSWR: with fiexiable cable ≤1.15+0.02f with semi-rigid/flexiable cable ≤1.10+0.01f Connector durability: 500Center contacts Male---brass,gold plated Female---beryllium copper,gold plated Bodies other metal parts brass,gold plated or nickel plated stainless steel,passivation or gold plated Insulators:PTFE Crimp ferrule: brass,nickel plated Gasket and seal rings: silicone rubber